Adjustable saw



G. l. HULBERT.

ADJUSTABLE SAW.

APPLICATION man SEPT. 24, 1920.

1,390,958. Patentedept- 13, 1921.

2 SHEETS-SHEET l.

G. 1. HULBERT.

ADJUSTABLE SAW.

APPLICATION FILED SEPT. 24. 192

Patented Sept. 13, 1921.

2 SHEETS SHEET 2.

wfg#- UNITED STATES PATENT OFFICE.

" GEORGE J. HULBERT, OF SEATTLE, WASHINGTON.

ADJUSTABLE saw.

'massa To allwhomtmay concern:

Be it known that I, GEORGE J. HULBERT, a citizen of the United States,and residing at Seattle, in the county of King and State of Washington,`have invented certain new and useful Improvements in Adjustable Saws,"of Whichthe following is a specilication. v

This invention relates to improvements in devices for adjusting saws andparticularly for adjusting a plurality of circular saws as are used onedging machines.

An Object of the invention is to provide a device for adjusting theposition of saws while rotating, the adjusting means being carried bythe machine structure.

Another object of the device is to mount the adjusting means in such away that it will not come in contact with the work on the machine.

With these ob'ects in view, the invention also comprehen s other objectswhich are articularly pointed out in the following escri tion andclaims.

Figure 1 is a plan view of an edging machine with the improved adjustingmeans attached thereto.

Fig. 2 is a front elevation of the machine.

Fig. 3 is a sectional view on line 33 of Fig. 1. i

Fig. 4 is a sectional view on line 4 4 of Fig. 3.

ig. 5 is a detail section showing the adjusting handle.

1 indicates the table of an ordinary type of edging machine, which isprovided with bearings 2 for a slotted arbor 3, and a longitudinalgroove 4 in the front edge thereof ada ted to receive o erating handles.

5 in icates the slot 1n the arbor 3, and said arbor has a plurality ofsaws 6 slidably mounted thereon, and provided with lugs 8 extending intothe Openings 7 in the saws, and engaging in the slot 5 in the arbor toreventrotation of the saw On the arbor.

he arboris also provided with a central bore 9, in which is mountedannularly slotted rings l0 provided with lugs 11 extending into slotl 5and having a bifurcated end portion to engage with the lugs 8 on thesaws. Disks 12 are mounted in the slotted portion of the ring and areprovided with a series of holes 13, spaced from the center thereof, andeyes 14 on either side of the disks in the center portion. The

rings and saws are both adapted to `rotate tion with the rings. Cables15 are secured to the eyes of each disk and extend through 4the holes.in theother disks beyond the end end of the arbor where they are passedover `"aseries' ofpulleys 16, and then are passed over pulleys 17secured to the table of the machlne. As shown, the cables extend inopposite directions from each side of the disks, passing over thepulleys 16 at Opposite ends of the arbor and then extending parallel toeach other to the pulleys 17, after which they are brought toward eachother and secured to eyes 19 on adjusting handles 18, which are slidablymounted in the groove 4 in the table of the machine.

Along the upper edge of the table is formed a series of indentations 2()to provide a scale, so that the distance between the saws may beindicated thereon by the rela tive positions of the handles.

A pulley 21 is mounted near one end of the arbor, and adapted to receivea belt 22 through which the'power for driving the saws is transmitted.

In the operation of an edgin machine with the above described sawadjusting devices, it will be obvious that the saws may be adjustedduring the rotation thereof, simply by moving the handles in the slot 4of the table, so that the handles indicate on the scale, the desireddistance between saws. InV the movement of the handles, the cables' 15are moved therewith, and transmit the motion of the handles to thedisks, which will be moved longitudinally in the arbor, and through therings will move the saws to the desired position.

What I claim is 1. In an edging machine, the combination of a table, aslotted arbor rotatably mounted "thereon, having a longitudinal boreformed therein, a plurality of saws slidably mounted on the arbor, andhaving lu s formed thereon, and extending into the s Ot in the arbor, aseries of rings in the arbor having an annular groove therein, and aprojecting lug adapted to lit in the slot in the arbor and engage thelug on said saw, disks mounted in the rings, and means for moving thedisks to space the saws a predetermined distance apart.

2. An edging machine, comprising l. table,

Specification of `Letters Patent. Patented Sept. 13, 1921. i Applicationinea septemter 24, 1920. serial No. 412,435. i'

a slotted arbor rotatably mounted thereon, and formed witha-'ilongitudinal bore, a-plu# rality of saws slidably mounted on thearbor,

' 1 rings mounted in the bore, formed with lugs through the liolesinlthe other disks vbeyond the end of 'said arbor, pulleys mounted on thetablethe edge of the ltable being formed :with a groove and handlesmounted in said grooye' the ends of said cables Vextending 'aou-njd andpassing over the cured to the handles. e

* edging machine -eomprisinga table,

pulleys and sea slotted arbor rotatably mounted thereon and formed witha longitudinal bore, a pluralityof saws slidably mounted on the arbor,elements mounted in the bore, and connected with the saws, and means formoving the elements.

4. An edging machine comprising a table, a Vslotted arbor rotatablymounted thereon formed with a longitudinal bore, a plurality of sawsslidably mounted 4on said arbor, and means mounted within the bore andconneoted with the saws, and controlled from a remote point for movingthe saws on the arbor.

'In testimony whereof I atlix my signature.

GEORGE J. HULBERT.

